Resilient wheel.



G. DORPPEL.

RESILIENT WHEEL. APPLICATION FILED 111111.11, 1911.

1,040,173. Patented 001.11912.

mum" III".

, v1/Enron GMI/501611101110155 ATTH/VEYS GEORGE DORFFEL, FQAKLAND,GALIFORNIA.

RESILIENT WHEEL.

l i Specification of Letters Patent. applicati@ mea March 11, 1911.serial No. 618,694.

To all whom it may concern:

Be it known that I, GEORGE 'DoREEEL, a citizen of the United States, anda resident of Oakland, in t-he county of Alameda and State ofCalifornia, have invented a new and Improved Resilient Wheel, of whichthe following is a full, clear, and exact description. y

My invention relates to resilient wheels j@ and more particularly to thetype of Wheels used for vehicles and especially for automobiles and thelike.

Reference is made to the accompanying drawings forming a part of thisspecification and in which like numbers indicate like parts.

Figure 1 is a side view partly in elevation and partly broken awayshowing an automobile wheel provided with my improved springs, Fig.- 2is a section on the line 2-2 of Fig. 1 looking in the direction'of thearrow; Fig. 3 is a section on the line 3-3 of Fig. 1 looking in thedirection of the arrow; Fig. et is a'detail showing in fragmentaryelevation the appearance of the hub when the cap and springs are removed;-'Fig.

5 is a section on the line 5,-5of Fig. 1

looking in the direction of the arrow.

l'.llhe rim of the 'wheel is shown at-6, and

engaging it internally are a number of feet 7 each bein carried by aspoke 8. There are several o these spokes, and because of theirposition, ll designate them as outer spokes.

At 9 is a stout ring which carries a number of bolts l0, the latterengaging also the outer spokes 8 so that the ringV 9 and rim 6 are quiterigid relative to each other. The ring 9 is provided internally with anumber of heads 11, each carrying centrall a button 12, the severalbuttons exten ing radially inward toward the hub.. Engaging the buttons12 are cylindrical plugs 13 of soft rubber. The inner ends of theseplugs' rest upon buttons 14. The bu'ttons`12-1etv and the plugs 13 areencircled by spiral..

springs 15.

At 16 is the body portion of the hub, and

it is this part which carries the buttons 14.-

`At 17 is a cap whichconstitutes the outer 5@ face of the-hub and issecured rigidly upon'v the hub. A number o fvspokes 18 aremount-` edrigidly upon the body portion 16 of the hub and extend'radially outwardfrom it.

lllach spoke 18 extends through a slot 18a in the ring 9. A l

At 19 is a ring which 1s provided with slots 20 through which the spokes8 extend loosely, as will be understood from Fig. 1. The ring 19 isprovided with buttons 21 which extend radially outward. These tuttonsare engaged by rubber plugs 22 similarl to the plugs 13 above described,and each having the form of a solid cylinder. The

Patented Oct. 1,1912.

plugs 22 are engaged at their outer ends by buttons 23 which are carriedby the rim 6 and. extend radially inward from the same. A number ofsprings 24 of substantially the same construction as the springs 15 arearranged in groups of three and encircle the plugs 22, as will beyunderstood from Fig. 1.

The hub and the ring 19 being rigid relatively to each other and the rim.Gand the ring 9 being rigid relatively to each other, the springsarranged as shown in Fig. 1 cushion one of the rigid units as a wholerelatively to the other, thus causing the wheel as a whole to be subjectto a consider-v able degree of elasticity.

Having thus described my invention, I claim as new and desire to secureby Letters Patent:

1. A resilient wheel, comprising a hub provided with spokes and radialprojections between the spokes, a ring surrounding the hub and providedwith apertures through which the spokes loosely extend and` withprojections on its inner face opposite the projections of the hub,rubber plu s inter-A posed between the projections, spiral sprmgs in towhich the said projections extend and encircling the rubber lugs, avsecond ring surrounding the first ring and to which the spokes aresecured, said. ring bein apertured. and provided with radial projectionson its -outer face, a rim provided with projections on its innerfaceopposite `the vprojections of the. .second ring, rubber plugs interposedbetween the projections, spiral springs into which the said projectionsextend.- and surrounding the plugs, and spokes secured to the rim andthe first named ring, said spokes extending loosely through theapertures of the second. ring.

2. A resilient wheel, comprising a hub provided with spokes, a ringsurroundin ltheV hub\`and provided with sockets an apertures throughwh-ich the pokes loosely project, rubber plugs interpos hub and the rlngatpo1nts opposite the sockets ofthe ring, spiral springs surrounding theplugs, a second ring surrounding the lirst ring and to which the spokesare se` between the cured', said ing being apertured between the l Intestimony whereof I have signed my points of attachment of the spokesthereto, name to this specification in the presence of 10 spokes securedin the sockets of the rst two subscribing witnesses.

` ring, passed loosely through the apertures of the-Second ring andsecured to the rim, rub- GEORGE DORFFEL `ber plugs interposed betweenthe second ring Witnesses:

and the rim between the lastnamed spokes, B. P. ZoBEL, and spiralspringsurround said plugs. W. D. LITTLETON.

